Chemistry: The Molecular Nature of Matter
7th Edition
ISBN: 9781118516461
Author: Neil D. Jespersen, Alison Hyslop
Publisher: WILEY
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Chapter 15, Problem 3PE
Sodium cyanide solution, when poured into excess hydrochloric acid, releases hydrogen cyanide as a gas. The reaction is
Identify the conjugate acid-base pairs in this reaction. (Hint: It may be more obvious if the spectator ions are removed.)
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Indicate how the concentration of each aqueous species in the chemical equation changes to reestablish equilibrium after
changing the concentration of a reactant or product. Also indicate how the pH changes. An up arrow indicates an increase in
concentration, a down arrow indicates a decrease in concentration, and leaving it blank means there is no change in
the concentration.
HC\(aq)+H,O()=CN (aq)+H,0*(aq)
pH
after the concentration of HCN is increased
after the concentration of CN is decreased
Answer Bank
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Consider a buffer solution that consists of two separate components: the weak acid, CH3COOH(aq), and its conjugate base, CH3COO¯ (aq) (added as NaCH3COO).
Which component will react with H+(aq) from a strong acid? Write the net ionic equation for the reaction that occurs when H+(aq) is added to the buffered solution.
Which component will react with OH-(aq) from a strong base? Write the net ionic equation for the reaction that occurs when OH-(aq) is added to the buffered solution.
In the following acid-base equilibria of weak acids in water, label the acid (A), the base (B), the conjugate acid (CA), and the
conjugate base (CB).
HCIO, (aq) + H,O(1) = H,O*(aq) + CI0, (aq)
H,CO, (aq) + H,O1) – H;O*(aq) + HCO; (aq)
Answer Bank
H,O(1) + CH;NH†(aq) = CH,NH,(aq) + H;O*(aq)
СА
А
B
СВ
CH, COOH(aq) + H,O(1)
- CH;COO (aq) + H;O*(aq)
Chapter 15 Solutions
Chemistry: The Molecular Nature of Matter
Ch. 15 - Which of the following are conjugate acid-base...Ch. 15 - Write the formula of the conjugate base for each...Ch. 15 - Sodium cyanide solution, when poured into excess...Ch. 15 - One kind of baking powder contains sodium...Ch. 15 - Which of the following are amphoteric and which...Ch. 15 - The anion of sodium monohydrogen phosphate,...Ch. 15 -
Given that is a stronger acid than what is the...Ch. 15 - Given that HClO is a weaker acid than determine...Ch. 15 - Order the following groups of acids from the...Ch. 15 - Using only the periodic cable, choose the stronger...
Ch. 15 - Prob. 11PECh. 15 - Explain why one acid is weaker than the other in...Ch. 15 - In each pair, explain why one is a stronger acid...Ch. 15 - In each pair, explain why one is a weaker acid...Ch. 15 - How would you expect the acidities of the...Ch. 15 - List these acids in terms of increasing acidity:...Ch. 15 - Identify the Lewis acid and Lewis base in each...Ch. 15 - Is the fluoride ion more likely to behave as a...Ch. 15 - Brnsted-Lowry Acids and Bases How is a...Ch. 15 - Brnsted-Lowry Acids and Bases How are the formulas...Ch. 15 - Brnsted-Lowry Acids and Bases Is H2SO4 the...Ch. 15 - Brnsted-Lowry Acids and Bases What is meant by the...Ch. 15 - Brnsted-Lowry Acids and Bases Define the term...Ch. 15 - Strengths of Bronsted-Lowry Acids and Bases
15.6...Ch. 15 - Strengths of Brønsted-Lowry Acids and Bases
15.7...Ch. 15 - Strengths of Brnsted-Lowry Acids and Bases The...Ch. 15 - Strengths of Brnsted-Lowry Acids and Bases...Ch. 15 - Strengths of Brnsted-Lowry Acids and Bases Acetic...Ch. 15 - Strengths of Brnsted-Lowry Acids and Bases Nitric...Ch. 15 - Strengths of Brnsted-Lowry Acids and Bases HCIO4...Ch. 15 - Strengths of Brnsted-Lowry Acids and Bases Formic...Ch. 15 - Periodic Trends in the Strength of Acids Explain...Ch. 15 - Periodic Trends in the Strength of Acids What are...Ch. 15 - Periodic Trends in the Strength of Acids Within...Ch. 15 - Periodic Trends in the Strength of Acids Explain...Ch. 15 - Periodic Trends in the Strength of Acids Within...Ch. 15 - Periodic Trends in the Strength of Acids Explain...Ch. 15 - Periodic Trends in the Strength of Acids Astatine,...Ch. 15 - Periodic Trends in the Strength of Acids
15.21...Ch. 15 - Periodic Trends in the Strength of Acids
15.22...Ch. 15 - Periodic Trends in the Strength of Acids Which of...Ch. 15 - Periodic Trends in the Strength of Acids Which of...Ch. 15 - Lewis Acids and Bases Define Lewis acid and Lewis...Ch. 15 - Lewis Acids and Bases In terms of atomic orbitals,...Ch. 15 - Lewis Acids and Bases
15.27 Explain why the...Ch. 15 - Lewis Acids and Bases Methylamine has the formula...Ch. 15 - Use Lewis structures to show the Lewis acid-base...Ch. 15 - Lewis Acids and Bases
15.30 Explain why the oxide...Ch. 15 - Lewis Acids and Bases The molecule SbF5 is able to...Ch. 15 - Lewis Acids and Bases In the reaction of calcium...Ch. 15 - Acid-Base Properties of the Elements and Their...Ch. 15 - Acid-Base Properties of the Elements and Their...Ch. 15 - Prob. 35RQCh. 15 - Acid-Base Properties of the Elements and Their...Ch. 15 - Acid-Base Properties of the Elements and Their...Ch. 15 - Acid-Base Properties of the Elements and Their...Ch. 15 - Acid-Base Properties of the Elements and Their...Ch. 15 - Prob. 40RQCh. 15 - Acid-Base Properties of the Elements and Their...Ch. 15 - Acid-Base Properties of the Elements and Their...Ch. 15 - Prob. 43RQCh. 15 - Advanced Ceramics and Acid-Base Chemistry What is...Ch. 15 - Advanced Ceramics and Acid-Base Chemistry What is...Ch. 15 - Advanced Ceramics and Acid-Base Chemistry
15.46...Ch. 15 - Advanced Ceramics and Acid-Base Chemistry How does...Ch. 15 - Advanced Ceramics and Acid-Base Chemistry
15.48...Ch. 15 - Brønsted-Lowry Acids and Bases
15.49 Write the...Ch. 15 - Brønsted-Lowry Acids and Bases
15.50 Write the...Ch. 15 - Brønsted-Lowry Acids and Bases
15.51 Write the...Ch. 15 - Brnsted-Lowry Acids and Bases Write the formula...Ch. 15 - Brønsted-Lowry Acids and Bases
15.53 Identify the...Ch. 15 - Brønsted-Lowry Acids and Bases
15.54 Identify the...Ch. 15 - Periodic Trends in the Strengths of Acids Choose...Ch. 15 - Periodic Trends in the Strengths of Acids Choose...Ch. 15 - Choose the stronger acid and give your reason:...Ch. 15 - Choose the stronger acid and give your reason:...Ch. 15 - Choose the stronger acid:...Ch. 15 - Choose the stronger acid:...Ch. 15 - Lewis Acids and Bases Use Lewis symbols co diagram...Ch. 15 - Lewis Acids and Bases Use Lewis symbols to diagram...Ch. 15 - *15.63 Beryllium chloride, , exists in the solid...Ch. 15 - Aluminum chloride, AlCl3, forms molecules with...Ch. 15 - Use Lewis structures to diagram the reaction...Ch. 15 - Use Lewis structures to diagram the reaction...Ch. 15 - Use Lewis structures to show how the following...Ch. 15 - *15.68 Use Lewis structures to show how the...Ch. 15 - Acid-Base Properties of Elements and Their...Ch. 15 - Acid-Base Properties of Elements and Their Oxides...Ch. 15 - Prob. 71RQCh. 15 - Prob. 72RQCh. 15 - What is the formula of the conjugate acid of...Ch. 15 - *15.74 Using liquid ammonia as a solvent, sodium...Ch. 15 - In liquid SO2asasolvent,SOCl2reactswithNa2SO3 in a...Ch. 15 - *15.76 The following space-filling model depicts...Ch. 15 - Which of the following compounds is the stronger...Ch. 15 - Which of the two molecules below is the stronger...Ch. 15 - 15.79 Write equations that illustrate the...Ch. 15 - Hydrogen peroxide is a stronger Brnsted-Lowry acid...Ch. 15 - Sodium hydroxide, NaOH, is basic. Aluminum...Ch. 15 - Hydrazine, N2H4, is a weaker Brnsted-Lowry base...Ch. 15 - Identify the two Brnsted-Lowry acids and two bases...Ch. 15 - In the reaction in the preceding exercise, the...Ch. 15 - How would you expect the degree of ionization of...Ch. 15 - Prob. 86RQCh. 15 - A mixture is prepared containing 0.10 M of each of...Ch. 15 - 15.88 Are all Arrhenius acids Brønsted-Lowry...Ch. 15 - How could you determine whether HBr is a stronger...Ch. 15 - 15.90 Alcohols are organic compounds that have an...Ch. 15 - Acid rain, acid mine runoff, and acid leaching of...Ch. 15 - 15.92 Using just Figure 7.30, find the five most...
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- Most naturally occurring acids are weak acids. Lactic acid is one example. CH3CH(OH)CO2H(s)+H2O(l)H3O+(aq)+CH3CH(OH)CO2(aq) If you place some lactic acid in water, it will ionize to a small extent, and an equilibrium will be established. Suggest some experiments to prow that this is a weak acid and that the establishment of equilibrium is a reversible process.arrow_forwardComplete each of these reactions by filling in the blanks. Predict whether each reaction is product-favored or reactant-favored, and explain your reasoning. (a) _________ (aq) + Br(aq) NH3(aq) + HBr(aq) (b) CH3COOH(aq) + CN(aq) ________ (aq) + HCN(aq) (c) ________ (aq)+H2O () NH3(aq) + OH(aq)arrow_forwardNaCLO(s) dissociates when it dissolves in water: NaClO(s) + H2O(l) →Na+(aq) + ClO−(aq) and in water ClO− acts as a base with a conjugate acid of HClO(aq) ClO- (aq) + H2O(l) = HClO(aq) + OH- How much NaClO must be added to 2.00L of water to make make a solution with a pH=11.0? Kb=[HClO][OH−]/[ClO−] =3.3x 10−7arrow_forward
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